A.O. Smith BTH-120 - BTH 199 & 250 Intake Air Connection; Inspect;Adjust Intake Air Tee Fitting

23
           

          
           
       
       

INSPECT/ADJUST INTAKE AIR TEE FITTING
     




Adjustment Procedure:
 

 

          
        

 

    

 


INTAKE AIR CONNECTION PIPE
199,000 & 250,000 Btu/hr MODELS
LARGE HOSE
CLAMP
3 INCH PVC
INTAKE AIR
TEE FITTING
FERNCO
COUPLING
Figure 17
BTH 199 & 250 INTAKE AIR CONNECTION
          




FACTORY INSTALLED
INTAKE AIR TEE FITTING
COMBUSTION BLOWER ASSEMBLY
199,000 & 250,000 Btu/hr MODELS
COMBUSTION BLOWER
1/2 INCH
BRANCH
HOSE BARB FITTING FOR
BLOCKED INTAKE AIR
SWITCH SENSING TUBE
FERNCO
COUPLING
Figure 15
IS NOT



        
    



90° TO 130°
CORRECT ORIENTATION
INTAKE AIR TEE FITTING
END VIEW
Figure 16